Leicesters Leonardo Ulloa (left) celebrates after scoring against Norwich during the English Premier League match at the King Power Stadium in Leicester, England yesterday. Leicester won 1-0.

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LONDON (AP):

Premier League leaders Leicester and reigning champions Chelsea needed winning goals in the 89th minute yesterday to keep on track their respective campaigns for the English title and European football next season.

Leonardo Ulloa came off the bench in the 78th minute to score the only goal of Leicester's home game against a Norwich side that looked to have earned a vital point in their battle against relegation.

Branislav Ivanovic headed Chelsea's winner in a 2-1 comeback victory at Southampton, who had previously kept six consecutive clean sheets in the league.

Elsewhere, West Ham moved up to provisional fifth place after a 1-0 win over Sunderland in the early kick-off, while Watford were held to 0-0 at home by Bournemouth, and Stoke beat bottom club Aston Villa 2-1. West Bromwich Albion edged Crystal Palace 3-2 in the late game.

SENSATIONAL SEASON

Sceptics have been waiting since late last year for the bubble to burst in Leicester's sensational season. Bottom of the standings at Christmas in 2014 and top of them at Christmas in 2015, the Midlands club was widely expected to drop points as the season wore on.

Two weeks after a 2-1 loss to Arsenal that ended a run of three consecutive wins, Leicester's title hopes looked set to take another knock at King Power Stadium.

Leicester forwards Jamie Vardy and Riyad Mahrez have scored more league goals than the entire Norwich team put together, with 33 to 30. But they were kept in check as Norwich played Leicester at their own game, sitting deep, and then looking to hit the opposition on the break.

The tactic worked, at least until Ulloa's close-range strike put Claudio Ranieri's side firmly back in the Premier League driving seat.

"You cannot always play well. It's not important to play well or not. It's important to take points," Ranieri said.

Chelsea trailed to a goal by Shane Long at Southampton just before half-time, but Cesc Fabregas drew the champions level in the 75th and Ivanovic headed the late winner.

Along with the points, Chelsea also extended their unbeaten league run since Hiddink replaced Jose Mourinho in December to 11 games.

"The Chelsea we want to see is one which reacts to setbacks," Hiddink said.

A single goal was enough for West Ham in the early game against relegation-threatened Sunderland. Winger Michail Antonio scored it by cutting in from the right touchline and muscling past three Sunderland defenders to curl the ball past keeper Vito Mannone. The performance lacked the home side's recent sparkle, but was enough to win a scrappy game.

"We were not flat, but we were not in the red zone," West Ham manager Slaven Bilic said.

"That makes this win even bigger for us. I will never be objective, as I am West Ham manager. But realistically, we deserved three points today."